FAMILY CODE

7E

TEMPERATURE

EDS006X/temperatureread-only,floating-point
Temperature for the EDS006X series of chips. In the -55C to 125C range,
with 0.0636C precision. The temperature is read every second,
continually. Data is presented in the specified temperature scale,
Celsius by default.
EDS007X/temperatureread-only,floating-point
Temperature for the EDS007X series of chips. Read using a wide-range
precise RTD sensor. Typical range is -60C to 260C with 0.15C accuracy,
although a range of -200C to 850C is possible. The temperature is read
every second unless a longer EDS007X/delay is given. Data is presented
in the specified temperature scale, Celsius by default.
EDS007X/resistanceread-only,floating-point
Actual measured resistance (Ohms) of the RTD element. Useful if the RTD
element doesn't conform to the typical European IEC 60751 standard.

HUMIDITY

EDS006X/humidityread-only,floating-point
Relative humidity in the 0-100 range (percent). Read every 0.2 seconds.
EDS006X/dew_pointread-only,floating-point
Dew point computed from EDS006X/temperature and EDS006X/humidity
computered every 0.2 seconds. Data is a calculated temperature and is
reported in the specified temperature scale. Default Celsius.
EDS006X/heat_indexread-only,floating-point
Heat index computed from EDS006X/temperature and EDS006X/humidity
computered every 0.2 seconds. Data is a calculated temperature and is
reported in the specified temperature scale. Default Celsius.
EDS006X/humidexread-only,floating-point
Humidex (popular in Canada) computed from EDS006X/temperature and
EDS006X/humidity computed every 0.2 seconds. Data is a percent and
reported in the 0-100 range.

CURRENT

The EDS0080 and EDS0083 measure current in the 4-20mA range, with upper
and threshold limits and the ability to set an alarm and independently
trigger a relay if the value is out of range.
EDS0080/current.[0-7|ALL]EDS0083/current.[0-3|ALL]read-only,floatingpoint
Current current level. (4-20mA)
EDS0080/max_current.[0-7|ALL]EDS0080/max_current.[0-3|ALL]EDS0083/min_current.[0-7|ALL]EDS0083/min_current.[0-3|ALL]read-only,floatingpoint
Maximum and minimum current readings since last alarm/clear command.

VOLTAGE

The EDS0082 and EDS0085 measure voltage in the 0-10V range, with upper
and threshold limits and the ability to set an alarm and independently
trigger a relay if the value is out of range.
EDS0082/volts.[0-7|ALL]EDS0085/volts.[0-3|ALL]read-only,floatingpoint
Current voltage level. (0-10V)
EDS0082/max_volts.[0-7|ALL]EDS0085/max_volts.[0-3|ALL]EDS0082/min_volts.[0-7|ALL]EDS0085/min_volts.[0-3|ALL]read-only,floatingpoint
Maximum and minimum voltage readings since last alarm/clear command.

SET ALARM

Set conditional alarm to trigger if corresponding flag is set. Also
must set high and low threshold.EDS00XX/set_alarm/temp_hiEDS00XX/set_alarm/temp_lowEDS006X/set_alarm/humidity_hiEDS006X/set_alarm/humidity_lowEDS006X/set_alarm/dew_point_hiEDS006X/set_alarm/dew_point_lowEDS006X/set_alarm/heat_index_hiEDS006X/set_alarm/heat_index_lowEDS006X/set_alarm/humidex_hiEDS006X/set_alarm/humidex_lowEDS006X/set_alarm/pressure_hiEDS006X/set_alarm/pressure_lowEDS006X/set_alarm/inHg_hiEDS006X/set_alarm/inHg_lowEDS006X/set_alarm/light_hiEDS006X/set_alarm/light_lowEDS0070/set_alarm/vib_hiEDS0070/set_alarm/vib_lowEDS007X/set_alarm/resistance_hiEDS007X/set_alarm/resistance_lowEDS0080/set_alarm/current_hi.[0-7|ALL|BYTE]EDS0080/set_alarm/current_low.[0-7|ALL|BYTE]EDS0082/set_alarm/volts_hi.[0-7|ALL|BYTE]EDS0082/set_alarm/volts_low.[0-7|ALL|BYTE]EDS0083/set_alarm/current_hi.[0-3|ALL|BYTE]EDS0083/set_alarm/current_low.[0-3|ALL|BYTE]EDS0085/set_alarm/volts_hi.[0-3|ALL|BYTE]EDS0085/set_alarm/volts_low.[0-3|ALL|BYTE]read-write,yes-no
Flag to set corresponding out-of-range alarm. "1" turns on flag, and
"0" turns off.

ALARM

Show or clear the out-of-range flags. When set, the device will respond
to a conditional search. Clearing the flags is performed with the
EDS00XX/alarm/clear command, not just having the measured value return
to the center range.
EDS00XX/alarm/clearwrite-only,yes-no
Write "1" to clear ALL the alarm flags.
EDS00XX/alarm/temp_hiEDS00XX/alarm/temp_lowEDS006X/alarm/humidity_hiEDS006X/alarm/humidity_lowEDS006X/alarm/dew_point_hiEDS006X/alarm/dew_point_lowEDS006X/alarm/heat_index_hiEDS006X/alarm/heat_index_lowEDS006X/alarm/humidex_hiEDS006X/alarm/humidex_lowEDS006X/alarm/pressure_hiEDS006X/alarm/pressure_lowEDS006X/alarm/inHg_hiEDS006X/alarm/inHg_lowEDS006X/alarm/light_hiEDS006X/alarm/light_lowEDS0070/alarm/vib_hiEDS007X/alarm/vib_lowEDS007X/alarm/resistance_hiEDS007X/alarm/resistance_lowEDS0080/alarm/current_hi.[0-7|ALL|BYTE]EDS0080/alarm/current_low.[0-7|ALL|BYTE]EDS0082/alarm/volts_hi.[0-7|ALL|BYTE]EDS0082/alarm/volts_low.[0-7|ALL|BYTE]EDS0083/alarm/current_hi.[0-3|ALL|BYTE]EDS0083/alarm/current_low.[0-3|ALL|BYTE]EDS0085/alarm/volts_hi.[0-3|ALL|BYTE]EDS0085/alarm/volts_low.[0-3|ALL|BYTE]EDS0090/alarm/hi[0-7|ALL]EDS0090/alarm/low[0-7|ALL]read-only,yes-no
Show corresponding out-of-range alarm. "1" means in alarm state. Can
only be turned off with clear

RELAY

Optionally found on the EDS006X and EDS007X. Can be controlled by
software or the alarm condition.
EDS00XX/relay/controlread-write,unsigned
Set the relay control scheme:
0 alarm control with hysteresis
1 alarm control but need EDS00XX/alarm/clear to unset
2 Control with EDS00XX/relay/state
3 Always off
EDS00XX/relay/stateread-write,yes-no
Turn the relay on or off if the EDS00XX/relay/controlissetto2
LED light
Found on the EDS006X and EDS007X. Can be controlled by software or the
alarm condition.
EDS00XX/LED/controlread-write,unsigned
Set the LED control scheme:
0 alarm control with hysteresis
1 alarm control but need EDS00XX/alarm/clear to unset
2 Control with EDS00XX/LED/state
3 Always off
EDS00XX/LED/stateread-write,yes-no
Turn the LED on or off if the EDS00XX/LED/controlissetto2

COUNTER

EDS00XX/counter/secondsread-only,unsignedinteger
Approximate seconds since power up.
EDS0090/counter/pulses.0-7|ALLread-only,unsignedinteger
Pulses on each channel since power up or reset. Channel should be set
to input ( EDS0090/output/set.x =0 )
EDS0090/counter/reset.0-7|ALL|BYTEread-write,yes-no
Clear the pulse count on the corresponding channel.
EDS007X/counter/samplesread-only,unsignedinteger
Approximate samples since power up.

MEMORY

memoryread-write,binary
96 bytes of memory. Not all is writable. Access to EDS00XX functions is
better accomplished through the data fields, which expose all the chip
features.
pages/page.0...pages/page.2pages/page.ALLread-write,binary
Memory is split into 3 pages of 32 bytes each. Only page 2 is writable.
ALL is an aggregate of the pages. Each page is accessed sequentially.
EDS008X/memoryread-write,binary
160 bytes of memory. Not all is writable. Access to EDS008X functions
is better accomplished through the data fields, which expose all the
chip features. The EDS008X has more memory than the other chips, so a
separate entry in the sudbirectory makes it available.
EDS008X/pages/page.0-4EDS008X/pages/page.ALLread-write,binary
Memory is split into 5 pages of 32 bytes each. Only page 5 is writable.
The EDS008X has more memory than the other chips, so a separate entry
in the sudbirectory makes the extra pages available. ALL is an
aggregate of the pages. Each page is accessed sequentially.
SUB-TYPE
tagread-only,ascii
Text description of the device. Up to 30 characters.
device_typeread-only,ascii
Device name. E.g: "EDS0071"
device_idread-only,unsigned
Number corresponding to the hexidecimal type. E.g:
EDS0071 -> 0x0071 -> 113 in decimal

STANDARD PROPERTIES

See the file man3/standard.3so.

ALARMS

None.

DESCRIPTION

See the file man3/description.3so.
EDS00XXOverview
The EDS00XX sensors are a family of devices from EmbeddedDataSystems.
Although provisional support for several types is included, only early
EDS0071 has been tested with OWFS.
The sensors all share the same 7E family code. They have the same first
memory page layout with a text tag property that describes them, and a
sub-type field giving the particular sensor. The data properties shown
in a directory listing will be specific to the sensor sub-type.EDS0071
The EDS0071(3) is a micro-processor based 1-wire slave made by EDS
(Embedded Data Systams). Is uses a high accuracy and extended range RTD
sensor to accurately measure temperatures.
Memory
The EDS00XX sensors are read and controlled by accessing parts of their
on-chip memory. Although the raw memory contents are exposed in the
memory and pages fields, all the available functionality is best
accessed by the other fields. In fact, directly changing memory will
confuse OWFS.RelayandLED
All the EDS00XX sensors have an LED and optional relay. Both can be
controlled either directly, or when the sensors reaches an alarm state.